He knew the boat would attract the attention of some of his own people on the bank, who, if they thought the occupants were escaping, would either pursue or fire on them.
The sight of the Indian, however, at the stern would make it appear that they were already prisoners, and the other warriors would give their attention elsewhere.
Omas kept clear of Monacacy Island, and by and by his feet touched ground.

Before that, the dripping Linna had run out on land, and so the whole party safely reached the eastern shore..